问题
单项选择题
If you will send us a catalog by air,we shall（）very much.
A.appreciate
B.appreciating
C.appreciation
D.appreciaeit
答案
参考答案：D
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If you will send us a catalog by air,we shall（）very much.
A.appreciate
B.appreciating
C.appreciation
D.appreciaeit
参考答案：D